EVGRAY Archive

Re: [EVGRAY] Samsung motor [1 Attachment]

Database ID: 112817
2019-03-26T19:00:50+00:00
tijean1961 <[email protected]>

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Hi Warren,
Where is the chapter 32 in the latest Patrick KellyWhat i have found is 
 Author: Patrick J. Kelly Version: 34.3 Release date: 117 March 2019 

And there is no chapter 32!!!
Jean

    On Tuesday, March 26, 2019, 1:01:45 p.m. EDT, Warren Keillor [email protected] [EVGRAY] <[email protected]> wrote:  
 
  


DougThis is how I have connected the Samsung motor to the 2.6 KW generator.Now I must drive that Samsung at 3600 rpm, using up to 400 volts of pulsed DCGetting 400 volts DC is no problem
Getting  it pulsed, and sequenced, is the issue, along with applying it at the precise moment in time.I have an Arduino board, and am building a circuit designed by Thomas Buie.It is published by Patrick Kelly in the latest version of his on line book chapter 32.The circuit requires feed back from the coils to sense position.However, there is a problem.EMF, our old problem buddy can shoot back into the controller, and kill the brains,A schottky diode might protect the gate drivers, but then squelch the position signal. Hmmmmm?
Ideas? ( Doug. I love your mechanical solution, but this sucker is way up in RF frequencies)Cheers Warren
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Date Tue, 26 Mar 2019 19:00:50 +0000
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Subject Re: [EVGRAY] Samsung motor [1 Attachment]
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From Jean Bourg <[email protected]>